Pray for them.
In the epistles, Paul was constantly asking and reminding the churches to pray. He wanted them to pray for him, to pray with him, to pray for each other, and to be constantly in prayer.
One very easy and selfless thing we can start doing today is praying for the people around us. We can pray for their safety, for their relationship with Christ, we can pray for them to be saved. There are all types of things we can be praying about, all the time.
Today, pray for other drivers on the road. Pray for your customer service people. Pray for your boss, coworkers, spouse, children, parents. Pray for people. Ask God to do great things in their life and to draw them closer to himself. Pray constantly for others.